FR2343240A1 - HARDNESS MEASURING DEVICE, ROCKWELL SYSTEM - Google Patents

HARDNESS MEASURING DEVICE, ROCKWELL SYSTEM

Info

Publication number
FR2343240A1
FR2343240A1 FR7705075A FR7705075A FR2343240A1 FR 2343240 A1 FR2343240 A1 FR 2343240A1 FR 7705075 A FR7705075 A FR 7705075A FR 7705075 A FR7705075 A FR 7705075A FR 2343240 A1 FR2343240 A1 FR 2343240A1
Authority
FR
France
Prior art keywords
measuring device
hardness measuring
rockwell
rockwell system
hardness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7705075A
Other languages
French (fr)
Other versions
FR2343240B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH252676A external-priority patent/CH594879A5/xx
Priority claimed from CH252776A external-priority patent/CH590470A5/xx
Application filed by Individual filed Critical Individual
Publication of FR2343240A1 publication Critical patent/FR2343240A1/en
Application granted granted Critical
Publication of FR2343240B1 publication Critical patent/FR2343240B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/40—Investigating hardness or rebound hardness
    • G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
    • G01N3/44—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors being put under a minor load and a subsequent major load, i.e. Rockwell system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Support Of The Bearing (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
FR7705075A 1976-03-01 1977-02-22 HARDNESS MEASURING DEVICE, ROCKWELL SYSTEM Granted FR2343240A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH252676A CH594879A5 (en) 1976-03-01 1976-03-01
CH252776A CH590470A5 (en) 1976-03-01 1976-03-01

Publications (2)

Publication Number Publication Date
FR2343240A1 true FR2343240A1 (en) 1977-09-30
FR2343240B1 FR2343240B1 (en) 1980-01-04

Family

ID=25690670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705075A Granted FR2343240A1 (en) 1976-03-01 1977-02-22 HARDNESS MEASURING DEVICE, ROCKWELL SYSTEM

Country Status (6)

Country Link
US (1) US4107978A (en)
JP (1) JPS52117183A (en)
BR (1) BR7701217A (en)
ES (1) ES226653Y (en)
FR (1) FR2343240A1 (en)
GB (1) GB1566492A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015039875A1 (en) * 2013-09-23 2015-03-26 Man Diesel & Turbo Se Machine tool comprising a hardness testing device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604253B2 (en) * 1986-07-10 1990-12-13 Commonwealth Scientific And Industrial Research Organisation Penetrating measuring instrument
US5067346A (en) * 1986-07-10 1991-11-26 Commonwealth Scientific And Industrial Research Organization Penetrating measuring instrument
DE3737461C2 (en) * 1987-11-05 1997-06-19 Helmut Fischer Gmbh & Co Guide device for a test piece of a hardness measuring device
US20090107221A1 (en) * 2004-07-02 2009-04-30 Alfred Ernst Hardness tester with indenter of hard metal or compound and oscillating crown for testing at high load and method of comparative assesment of the hardness/depth profile
CN102213663B (en) * 2011-04-03 2013-12-11 吉林市江机民科实业有限公司 Calibration instrument for depth sounding device of metal Rockwell hardness tester
CN106990008A (en) * 2017-03-02 2017-07-28 吉林市江机民科实业有限公司 The special calibrating instrument of Rockwell apparatus Direct Test method
US11243154B2 (en) 2019-10-22 2022-02-08 Irvin Automotive Products, LLC Foam displacement indicator
CN111360583A (en) * 2020-04-24 2020-07-03 成都航利航空科技有限责任公司 Special inner diameter measuring tool for exhaust assembly in aircraft engine and using method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1661718A (en) * 1927-02-02 1928-03-06 Donald C Davis Hardness-testing device
US2804769A (en) * 1955-07-29 1957-09-03 Clark Instr Company Hardness tester work piece clamping means
US3182491A (en) * 1959-11-13 1965-05-11 Tschirf Ludwig Rockwell hardness testing apparatus
US3200640A (en) * 1960-11-09 1965-08-17 Ernst Alfredo Hardness measuring apparatus, operated by a single compressive motion
JPS4959690A (en) * 1972-10-05 1974-06-10
US3965727A (en) * 1974-10-17 1976-06-29 Argabrite George A Hardness testing instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015039875A1 (en) * 2013-09-23 2015-03-26 Man Diesel & Turbo Se Machine tool comprising a hardness testing device
US10875139B2 (en) 2013-09-23 2020-12-29 Man Energy Solutions Se Machine tool comprising a hardness testing device

Also Published As

Publication number Publication date
FR2343240B1 (en) 1980-01-04
ES226653Y (en) 1977-08-16
JPS52117183A (en) 1977-10-01
GB1566492A (en) 1980-04-30
ES226653U (en) 1977-04-16
BR7701217A (en) 1977-10-18
JPS5759489B2 (en) 1982-12-15
US4107978A (en) 1978-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse